Suicidal thoughts PLEASE HELP?

I'm 16. This year has been HELL for me. Nothing seems to be going right for me, ever. My hair is breaking off & thinning at ends, so I might have to cut a lot of it, which will make me look badly unattractive. My grandmother is dieing. I'm lonely, I have no one to talk to. No one close I feel comfortable around to comfort me, no one to tell me everything's gonna be alright. dont get along with any of my family because they always down talk me. my mom cherishes the rest & treat me like dirt for no reason.Have no friends. Home schooled since 12, want to go back to public but too embarrassed. I cry everyday before bed. I tried going to god millions of times, I feel like god doesn't care nor love me. I feel like no one loves me. I just wanna be happy. It hurts so bad that its hurting me inside. I cant take the pain anymore longer.The voices in my head is contently telling me to just kill my self. I feel like there's no reason to live anymore,I am worthless. I want help, but then maybe this is meant to be?. I don't wanna die, i'm so scared, but im at my breaking point. I cant do this anymore! :,(. NO ONE UNDERSTANDS